Has anyone tried using the Akai MPD218 pads with the OP1? Of course, it would be primarily for drums, though you could try banging it with other things on the OP1.
The idea of physical MPC-like pads interests me.
Akai MPD218](MPD218 MIDI Pad Controller | Akai Pro)
i tried something like this a long time ago
ymmv but the main drawback for me was not being able to enter notes into the sequencers via MIDI
So I just brought it home. Works OK with a couple of iPad apps. Not clear if I am going to be able to connect it to the OP1 without using my laptop computer to make the midi host and USB connections. Which I really would rather not deal with.